Lighting and ignition switch



Dec. 1924- 1,517,907

E. N. JACOB] LIGHTING AND IGNITION SWITCH Filed May 24, 1919 2 Sheets-Sheet 1 REAP INVENTOQ WITNESSES AT TOPNEY Q2? i p Dec. 1924- 1,517,907

E. N. JACOBI LIGHTING AND IGNITION SWITCH Filed May 24, 1919 '2 Sheets-Sheet 2 WITNESSES Patented 2, 1924. I

UNlTED STATES N. JACO'BL-DF MILWAUKEE, WIS

PATf.

GQNSIN, ASSIGNOR T exudes a sm'r'ron LIGHTING AND I-NITIOH SWITGEL Applicationflled Kay 24, 1919. .ISerla'l No. 289,504.

Toall whom it may concem:

' in claimed and all equivalents.'

Be it known that I, EDWARD N. JACOBI, a

citizen of the United States, and resident of" Milwaukee; Milw ukee County, Wisconsin, have invented new and useful Improvements in Lighting and Ignition Swi hes, of which the follfiingis a description, ref erence being' had to the accompanying drawings, which aireiagpa'rt of this specification.

"This iniientionhas; fer itsiohjectto provide a switch forco trolling the hghtin'g and ignition eircuitsgei automobiles or for controlling other circnitswherein it is desired to prevent the operation of-the switch by locking means;

I Another object vide a lighting switch 'handlewith-a lock containing a key-operated lock barrel and provide an ignition switch operated by the lock barrel and permitting the range of movement i of the lighting switch disturbing its condition.

'Another, object oithe jvide a switch mechanism of this type occupying small space and'of a comparatively inexpensiveconstruction."

A more particular object of the invention is to provide such a switch structure that will. be more durable. U 7

With the above and otherpbjects in view the inwention' consists in the switch as here- Reierrin' to the accompanying drawings in which echaracters of reference indicat} the same parts in difler'entviews:

1 struc ed in accordance with this invention;

Fig.2 is a back view thereof; Fig. 3 is a sectional view 1 Fig. 4 is a backview with the terminal head and ignition switch removed;

Fig. 5 is a similar view onthe sectional plane of line 5-5 of Fig. 3; i Fig. 6 is a sectional view showing the-inner face of the terminal head;

Fig. 7 is a view showing the inner end of V the switch handle and the stop for limiting the movement of the lock barrel; 7

Fig. 8 is a sectional view of the parts operated by the key;

Fig. 9 is a perspective viewofthe discon the handle;

nected parts operated b 'the lighting switch Fig. 10 is a view spider;

of the invention is. to pro without invention is to prol'is a-front viewof a switch-con- Fig. "11 is a perspective view of the eccentrio; and

Fig. 12 is a-perspective view of the spring seat.

' In these drawings 10 indicatesla switch handle which has a circular base provided. with a reduced annular shoulder 11 rotatablyifit'ting in the central opening of a diskshaped'dial plate 12. The dial late 12 has its outer edgeturned downward y to form a flange 13 and extensions of this flange at regular intervals form downwardly projectingearslh The shallow cylindrical'switchcase 15has an outwardly extending flange 16 provided with openings torec'eive the ears 14., while the flange 13 of the dial plate bears on the. flange 16. The details of construction. of. i

the switch case and its connections are covlication ior ered, in my co-pending ap ed April 26;

switches; Serial No. 292,836, 1919. v

Connecting studs 23, threaded in a. tapped ring 21 confined between the flange 16 ofthe switch case and the dial plate -l2, serve to clamp a disk-shaped terminal head 24 to the end of the switch case. In the terminal head 24 are contact studs 26 forming bind:

ing posts at their outer ends for connection with terminal wires, not shown. The inner ends? of the contact studs lie flush with the surface of the terminal head and are recessed to'receive the convex end's of the arms of acontact spider 27 which is carried by the handle '10 and constitutes a lighting switch. Other contacts 28, which are areshaped and are concentric with the axis of the casing and pass through the terminal head, are engaged by a contact plate 29 operated by a lock barrel in the handle, as will be later described, to constitute an ignition switch. The edges of, the contacts 28 he flush with the surface of the terminal head 'as do the inner ends of the contact studs 26 so that all may be dressed at the time of grinding the surface of the terminal head. v The various parts of the driving and insulating connection for the contact spider are shown in Fig. 9. A thrust plate 30 in the form of a metal disk fits against the bottom of the handle 10 and bears at its edge against the inner surface of theedge of the dial plate 12. A similar disk 34 of insulating material fits on the bottom of the thrust plate. Then comes a driver in the form of a metal ring with projections carrying downwardly extending ears 36 to pass through slots in projections 37 of the double s ider 27 which comes next. Finally a spi er clamp 38 of insulating material fits beneath the double spider and is provided with projections 39 containing slots through which the ears 36 pass. Certain of said projections on the clamp also have openings through which screws 40 pass so as to clear the spider and its driver and enter through openings in the insulating plate and thrust plate to thread into openings 41 in the bottom of the handle. The spider is thus carried by the handle though insulated from it and. the handle is securely held within the dial plate though permitted to turn. The turning movement of the handle is limited by a projection 42 on the edge of the opening of the dial plate projectlng into .a recess. in the bottom of the handle and engaging shoulders 43 at the ends thereof, as seen in Fig. 5.

A cylindrical lock barrel 44 is rotatably mounted in a central opening or bore through the handle and carries tumbler slides 45 which may project into side recesses in the handle as usual to prevent the turningof the lock barrel, but which may be drawn within the lock barrel when a key 46 is properly positioned therein. The are of movement of the lock barrel may be determined by a stop plate 47 keyed thereon and having projection to strike against projections 48 on the bottom of the handle.

A coupling or connector 49 is mounted on the end of the lock barrel 44 by having opene ings 50 fitting over the ends of dowel projections 51 of the lock barrel and by having a lug 52 fittin in a recess 53 of the lock barrel, and whi e its major portion is cylindrical and concentric with the lock barrel so as to pass through the registerin central openings in the disks 30 and 34, river 35, double spider 27 and clamp 38, its upper portion of larger diameter forms an eccentric 54 fitting within an elongated opening in a lock bolt 55. The lock bolt 55is contained within a recess-in the end of the handle with its ends slidin in grooves thereof so that, as it is shifted ongitudinally by the turning of the eccentric, one end is adapted to enter one of a number of notches 56 in the edge of the dial plate to prevent the operation of the lighting switch handle in any of the three positions thereof.

A cup-shaped contact plate driver 57. of insulating material receives the end of the coupling 49 and has a groove in the bottom of its cavity fitting on the transverse flange 58 on the end of the coupling so as to be compelled to turn therewith. A spring retainer 59 has its central disklike portion bearing on the end of the driver 57 and its ends extending upwardly in opposite groves in the sides of the drivers and the flange at the upper end thereof where said ends extend outwardly to form spring seats for a. coil spring 60 which bears on the contact plate 29. The contact plate 29 has a central opening to receive the driver 57 with inwardly projecting lugs 61 fitting in opposite grooves in the sides of the driver so as to form a sliding key connection therewith compelling the contact plate to turn with the lock barrel. The contacts 28, on which the ends of the contact plate 29 bear for controlling the ignition circuit, have their inner ends contained within recesses in the inner face of the terminal head so that they are exposed for contacting with the contact plate and are level with the unrecessed portions of the terminal head onto which the ends of the contact plate pass when the key is turned in the lock.

The length of the contacts 28 is. such that the contact plate may form the bridge from one to the other in any of the three positions of the lighting switch. Also these ends of the connector plate may swing through the arc of movement of the lighting switch handle without engaging the contacts 28 so that the switch may be locked or unlocked in any position of the handle and whenever it is locked the ignition is rendered inefiective. When the ignition depends upon a supply of current from a battery, it is rendered ineffective by opening the circuit so that the contact plate 29 does not bridge across the contacts 28 in any position of the lighting switch when locked, but when the ignition depends upon a magneto it is rendered ineffective by closing or grounding the circuit by the contact plate bridging across the contacts 28 in all positions of the lighting switch when locked. In order that the switch may be adapted for either condition the lugs 61 on the contact plate are positioned at an angle of 45 degrees from the contact ends and it is only necessary to remove the contact plate and reverse 1t in order to change its relative position by 90 degrees. This ada ts it for either closing a magneto circuit or ibr openinga battery circuit in all looked positions of the switch, while closing the battery circuit and opening the magneto circuit in all unlocked positions of the switch.

As seen in Fig. 2, one of the arc-shaped contacts 28 has connection with a terminal stud 26 and the other has a connector strap 62 pivotally mounted thereon and adapted to be connected either with the terminal stud 26 which is intended to take the battery con nection or with an ear 63 on the edge of the switch case, which is intended to have a grounding connection in any suitable manner as through a metal cowl board or by direct connection. A pivotal connection for the connector strap 62 is made by a rivet 64 which clamps the contact segment 28 in place segment 28, which contacts Y 65 containing a coiled sequently none .means 0 the key.

and is referably countersunk beneath the plane 0 the bottom of the spring seat 59 so as to avoid contact therewith. The contact directly with the terminal stud, has a projection at its edge bent over for this purpose and rivetedt0 the end of the terminal stud in the manner shown in Fig. 3, with side wings bent up to form a wire guard to take the place of the slotted cup-shaped wire guard riveted to the ends of the other terminal stud. A resistor resistance wire may be connected across two of the terminal studs 26 in the manner shown in Fig. 2 to introducea dimming resistance in the headlight circuit when separate small headlights are not used; The usual stamped designations 'for the terminal studs are shown-in 'Fig. 2 as Ign for i ition, Bat for-battery, Rear for taillight, t head for small headlight, and L head for lar e headlight.

n the opera ion of the switch the s ider 27 may be moved by turning the han e 10, on which it' is mounted, so as to contact with such terminal studs as to effect the desired connections .for the various conditions preferably indicated b marks appearin on .the dial plate 12, as if, Dim and 611. With the arrangement as shown, the lighting switch in the OE position makes-no connection with the battery contact and conof the lights are lighted. In the Dim position connection is made with thc,Battery", the Rear contact and the S head contact so that the taillight is lighted and if small headlights are used head contact so that the taillight and the large headlights are li hted In any of these positions of the lig ting switch the ignition switch plate 29, which moves with the handle, may be in either a position in which it bridges across the contact segments 28 or a position in which it bears on the insulating portions of its path of .travel, accordmg to. whether battery ignition or magneto ignition is used. It ma also be turned a quarter turn relative to t e switch handle-b the turning of the lock barrel by Thusby turning the key to the position in which it can be removed, the lock barrel is so turned as to move the ignition contact plate 29 to a position in which it will render the ignition ineffective in either case, and when the key is restored andv only, and then the lighting switch may be turned to efliect any desired change in the lighting arrangement, whetherthe ignition switch is locked or unlocked.

The switch of this invention is adaptable to suit varying requirements so that both lighting switch and ignition switch may be locked or the lighting switch only; so as to control separate small headlights or dim large headlights through the introduction of a resistor; and so as to control either battery or magneto ignition.

What I claim as new and by Letters Patent is:

1. In a lock switch, a suitably mounted switch handle capable of turnin through an arc of movement, a lock barre mounted in the switch handle and capable of turning through an arc of movement relative to the handle, a switch member having connection with the lock barrel for movement therewith either by the turning of the handle or the relative turning of the lockbarrel, contacts engaged by said switch member in one are of movement thereof, andmeans whereby the position of the switch member may be desire to secure causing the contacts to be enga ed by the switch member'in the other are 0% movement thereof.

2. In a lock switch, a switch handle capable of turning through an arc of movement, a lock barrel mounted thereon and movable therewith and capable of turning through an arc of movement relative thereto, a switch member connected with the lock barrel, contacts en aged by the switch member in one are 0 movement thereof, and means for changing the position of----the switch member with respect to the lock barrel for causing it to engage the contacts in the other are of movement thereof.

.3. In a lock switch, a switch handle turning through an arc of movement, a lock bar'- rel therein turning therewith and turning independently through an arc of movement, a switch member having a key connection with the lock barrel and having switch arms at an angle to the key connection whereby the position of the switch arms is changed by reversing the switch member, and contacts engaged by the switch arms in one are of movement t switch arms in the other are 0 movement when the switch member is reversed.

' 4. In a lock switch, a switch handle turning through an arc of movement, a lock barrel mounted therein and turning therewith and also turning independently through an arc of movement, a driver of insulating material connected with the lock barrel, a switch member surrounding the driver. and splined thereon, a spring sursoundmg the driver and bearing on the the locking bolt 55 may be removed changed with respect to the lock barrel for y switch member, and contacts engaged by the switch member during one are of movement thereof.

5. In a lock switch, a switch handle turning through an arc of movement, a lock barrel mounted therein and turning therewith and turning independently through an arc of movement, a driver connected with the lock barrel, a switch member splined on the driver, a U-shaped spring seat let into the driver, a spring surrounding the driver and bearing on the spring seat and on the switch member, and contacts engaged by the switch member in one are of movement thereof.

6. In a switch, an insulating terminal head, arc-shaped contacts passing through the terminal head with their arc-shaped edges flush with the face of the terminal head and spaced therefrom within a recess in said face, and a rotatable spring-pressed switch plate bearing on the face of the terminal head and on the edges of the contacts.

7. In a lock switch, a switch handle mounted to turn, a lock barrel mounted in the switch handle, a connector having a driving connection with the lock barrel, a cam on the connector, a lock bolt slidable in the handle and operated by the cam, a stationary part engaged by the lock bolt for locking the handle, a driver having drivingconnection with the connector, a switch member mounted on the handle, a switch member mounted on the driver, and a terminal head having contacts engaged by the switch members.

8. In a switch, a switch case having a "front plate provided with an opening, a switch handle rotatably mounted in the opening of the front plate, a thrust plate on the switch handle bearing against the inner face of the front plate, a contact spider, a driver having ears passing through the spider an insulating clamp plate fitting against the spider and receiving the lugs of the driver, screws passing through the clamp plate and into the handle for clamping the spider to the handle, and an insulating plate between the thrust plate and the driver.

9. In a combination lighting and ignition switch, a lighting switch mechanism having contact studs one of which is adapted to have a battery connection, an ignition switch mechanism having contacts, a ground i connection, and a connector pivotally mounted on one of the ignition switch contacts and adapted to connect with the battery contact with the lighting switch or with the ground connection.

10. In a switch, an insulating terminal head containing a slot, a sheet metal contact member secured to the back of the terminal head and passing through the slot with its edge forming a contact, and a switch member engaging the contact.

11. In a switch, an insulating terminal head having arcuate slots, sheet metal contact members secured to the terminal head and passing through the slots with their inner edges forming arc-shaped contacts, and a switch member bearing on said arcshaped contacts.

12. In a switch, an insulating terminal head. provided with a slot therethrough, a sheet metal contact member riveted to the back of the terminal head and passing through the slot with its edge forming a contact on the face of the terminal head, and a switch member engaging said contact.

In testimony whereof, I aifix my signature, in presence of two witnesses.

EDWVARD N. J ACOBI. /Vitnesses:

S. G. CALDWELL, H. D. Carmen. 

